Polytheism is in many ways as reasonable as Monotheism. The prevalence of monotheism is a historical accident. The Japanese Shinto religion is polytheistic and Japan is an advanced country.

There is no evidence for any religion:-

In one way Polytheism may make slightly more sense than Monotheism. The chaotic state of the world is consistent with many gods perhaps also goddesses who have different aims. The chaotic state of the world is also consistent with no god. Occam's razor may favour no god.

In another way, Polytheism has a difficulty that isn't in monotheism. Why do the same scientific principles apply throughout the universe? How did the gods and goddesses agree the same scientific laws? [1]